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The species would have changed, or evolved. Darwin called this process 'natural selection', and it was one of his most important ideas. He explained in the book called 'On the Origin of Species' which was published in 1859. Darwin developed his own ideas on natural selection.
Similarly, it is asked, what was Darwin's experiment?
Darwin and the Movement of Plants Charles Darwin conducted many painstaking experiments to support his theory to the contrary. He demonstrated, through endless observations, that plant movements are just so slow that they are almost invisible to the human eye.
Correspondingly, how did Darwin discover the theory of evolution?
Key points: Charles Darwin was a British naturalist who proposed the theory of biological evolution by natural selection. Darwin defined evolution as "descent with modification," the idea that species change over time, give rise to new species, and share a common ancestor.
In 1872, Darwin published The Expression of the Emotions in Man and Animals, in which he argued that all humans, and even other animals, show emotion through remarkably similar behaviors. For Darwin, emotion had an evolutionary history that could be traced across cultures and species—an unpopular view at the time.